Method, device and system for control over safe driving
A technology of safe driving and control method, applied in the direction of control device, control drive, transportation and packaging, etc., can solve the problems of motor reversal, affecting the driving safety of electric vehicles, insufficient motor power, etc.
Active Publication Date: 2018-06-01
INVT ELECTRIC VEHICLE DRIVE TECH SHENZHEN CO LTD
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Problems solved by technology
When the electric vehicle is started and running, if the rotor position information provided by the resolver is wrong, it may cause insufficient power of the motor, or it may cause the motor to reverse or even run over, seriously affecting the driving safety of the electric vehicle.
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.
[0028] Embodiments of the present application provide a safe d...
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The invention discloses a method, device and system for control over safe driving. The method includes the steps that according to obtained gear position information, driving intention information ofa user is determined; according to the obtained gear position information and pedal information, a torque instruction is generated to drive a motor of an automobile to rotate; feedback information which is output by a rotary transformer of the automobile according to rotor position information of the motor is obtained; according to the feedback information, steering information of the motor is determined, and whether the steering information confirms to the driving intention information or not is judged; if the steering information does not confirm to the driving intention information, the automobile is controlled to enter a preset failure protection mode. With the method, when the rotor position information gets wrong, the automobile is controlled to enter the preset failure protection mode to protect the automobile, and therefore the safety of the automobile is improved.
Description
technical field [0001] The invention relates to the field of automobile control, in particular to a safe driving control method, device and system. Background technique [0002] At present, electric vehicles generally use permanent magnet synchronous motors as the main power drive motors, and adopt closed-loop vector control mode, which requires the installation of resolvers to provide real-time rotor position information. If the resolver is damaged, or if it becomes loose during use, or if zero calibration measures are not taken properly before use, etc., it will provide wrong rotor position information to the motor controller. When the electric vehicle is started and running, if the rotor position information provided by the resolver is wrong, it may cause insufficient power of the motor, or it may cause the motor to reverse or even run over, seriously affecting the driving safety of the electric vehicle. Therefore, it is necessary to provide a safe driving control method...
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IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/423Y02T10/72
Inventor 童维勇孟凡强
Owner INVT ELECTRIC VEHICLE DRIVE TECH SHENZHEN CO LTD